Although your Application date is 1st week of May, your Medical Completion date is quite late in the month of December. Not sure if you completed your Medical near to the expiry of your due date period.
Anyway, Given that your Medicals were completed in December, I would say wait until 20 March. 3 Months and 1/2 weeks buffer after Medical is a reasonable time to wait and watch. After that, you have a strong reason to file for GCMS Notes.
By the way, You did not clarify about RPRF/PCCs, but I hope your PCCs and RPRF were submitted before 12th December.